Troubleshooting Right Turn Blinker Not Functioning on a Trailer

Question:

I install new trailer lights on my trailer but the left side work ,the right side comes on but wont blink .

asked by: Jesse

Expert Reply:

It really sounds like the ground is not making good enough contact on the right turn signal/tail light and because of that it isn't able to draw enough amperage to illuminate the blinker function of your bulb.

Nearly every time we encounter this problem the issue is just that the assembly isn't grounded enough.

Make sure that the trailer side connector are clean and free of corrosion inside and out. The main connector grounds should be attached to clean and corrosion free bare metal surfaces. The light grounds should also be attached to clean and corrosion free bare metal surfaces. If there is anything between a light ground and the metal trailer frame or if the trailer has an aluminum frame, tilt bed, or folding tongue, any of these things can interrupt the ground. Running jumper wires from the light grounds to the main trailer connector ground can help.

expert reply by: Jameson C